(1) INTRODUCTIONThis paper describes the methods used for the three types ofcompensations employed in calibrating indicating instruments. They are the temperature, phase and frequency compensations. The materialincluded in this paper is by no means comple (1) INTRODUCTIONThis paper describes the methods used for the three types ofcompensations employed in calibrating indicating instruments. They are the temperature, phase and frequency compensations. The materialincluded in this paper is by no means comple